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Advances in carbon isotope analysis of trapped methane and volatile hydrocarbons in crystalline rock cores
Rapid Communications in Mass Spectrometry  (IF2.419),  Pub Date : 2021-07-24, DOI: 10.1002/rcm.9170
Jethro Sanz-Robinson, Trevor Brisco, Oliver Warr, Iffat Jabeen, Georges Lacrampe-Couloume, Jacob J. Hanley, Barbara Sherwood Lollar

The isotopic composition of hydrocarbons trapped in rocks on the microscale (fluid inclusions, mineral grain boundaries, microfractures) can provide powerful information on geological and biological processes but are an analytical challenge due to low concentrations. We present a new approach for the extraction and carbon isotopic analysis of methane (CH4) and hydrocarbons in trapped volatiles in crystalline rocks.